DETROIT (WWJ) – An Oakland County man accused of stockpiling hundreds of thousands of images of child pornography has waived his right to a grand jury hearing.

William Snody, 62, was scheduled for a preliminary exam in federal court on felony charges of receipt and possession of child pornography; but on Monday, he waived his right to appear before a grand jury hearing while entering a plea of not guilty.

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The next step, WWJ’s Jon Hewett reports, will be a pretrial date in District Court in Ann Arbor, yet to be determined.

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When federal investigators raided Snody’s Rochester Hills home back in November, he was allegedly found to be in possession of over 500,000 child pornography image files on a computer and other devices, along with child porn videos on DVD.

The FBI says Snody has admitted to downloading and viewing child porn for 15 years, and categorizing his collection according to the names, ages and nationalities of the children involved.

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If he’s convicted, the charges against Snody each carry a mandatory five-year minimum prison sentence.